A type of turbine that that has two blades whose pitch is adjustable. The turbine may have gates to control the angle of the fluid flow into the blades.
Any wind blowing down an incline. If warm, it is a foehn. If cold, it may be a fall wind or a gravity wind.
A type of cooling-power anemometer based upon the principle that the time constant of a thermometer is a function of its ventilation.
The value of stress intensity at which crack propagation becomes rapid in sections thinner than those in which plane-strain conditions prevail.
Blocks on which the keel of a vessel rests when being built, or when she is in dry dock.
A mast that is stepped (placed) on the keel at the bottom of the boat rather than on the deck. Keel stepped masts are considered sturdier than deck stepped masts.
A severe naval punishment for serious offenses in which the victim was hauled from one yardarm to the other under the keel of the ship. The victim rarely survived; he would either be cut to ribbons by the shellfish on the ship's bottom or drown.
A look-out is stationed in a position to watch for danger ahead. To be on guard against sudden opposition or danger.
To keep the sails full and drawing
The kelvin unit of thermodynamic temperature, is the fraction 1/273,16 of the thermodynamic temperature of the triple point of water. The triple point of water is the equilibrium temperature (o,01
An absolute temperature scale with the ice point of pure water defined as 273.16 K. The size of the degree is the same as on the Celsius scale, and the zero point is absolute zero.